System and method for recognizing speed limit sign using front camera

Abstract

Disclosed herein are a speed limit sign recognition system and method using a front camera which can track a traffic sign continuously appearing in images which are obtained by a photographing speed limit sign located in front of a driver using a camera mounted on the front of the vehicle, recognize an internal numeral of the traffic sign, and inform the driver of an actual limit speed through the recognized numeral, including: an image acquisition unit for acquiring a front image using a front camera; a traffic sign detector for detecting a traffic sign from the acquired front image; a recognition unit for recognizing an internal numeral in the detected traffic sign; a tracking unit for tracking a traffic sign continuously appearing in the front image, and eliminating a temporarily misrecognized object; and a decision unit for determining a result of speed limit recognition on the recognized traffic sign.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims priority to Korean Patent Application No. 10-2014-0006039, filed on Jan. 17, 2014, the disclosure of which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]Exemplary embodiments of the present invention relate to a system and method for recognizing a speed limit sign using a front camera, and more particularly, to a speed limit sign recognition system and method using a front camera which can track a traffic sign continuously appearing in images which are obtained by a photographing speed limit sign located in front of a driver using a camera mounted on the front of the vehicle, recognize an internal numeral of the traffic sign, and inform the driver of an actual limit speed through the recognized numeral.[0004]2. Description of the Related Art[0005]Intelligent vehicles employ systems, such as a Driver Assistance System (DAS), a Lane Detection War...

AI Technical Summary

Benefits of technology

The present invention is a system and method that uses a front camera to recognize a speed limit sign and inform the driver of the actual limit speed. This means that the driver can see the speed limit sign and know what speed they are supposed to be driving at. This can improve safety on the road by helping to prevent accidents and reduce speeding.

Problems solved by technology

Of the applications, the traffic sign recognition is one of important technologies which cannot be overlooked when safety is considered, but the traffic sign recognition has not made much progress as comparison with other technologies.

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